Steel Box Beam Structural Steel Beams And Columns Welded Box Steel Column
Steel Box Beam Structural Steel Beams And Columns Welded Box Steel Column is composed of 4 steel plates. The four-way fillet weld is divided into two types: full penetration groove and partial weld head groove according to strength. The box type column is provided with horizontal partitions and main transverse partitions. Welding with the melted nozzle electroslag welding of the web, three-sided welded box between the ordinary diaphragm and the cover plate, and the outer side of the shaped column is provided with the beef leg and the eye plate perpendicularly supported and connected to the main beam secondary beam at each elevation, the column The connection to the column is a combination of welding and top tightening.
We have one professional production line to fabricate large size steel structure box beam, box column.


Products Name | Steel Box Beam Structural Steel Beams And Columns Welded Box Steel Column |
Grade | Q235B,SS400,Q345B,S235JR,S275JR,ASTM-A36 |
Size | 100x100mm-1500x1500mm |
Thickness | 8mm-100mm |
Length | 2-20meters |
Shape | Box shaped |
Delivery Time | 7-15 Days if in stock size, or it will be 20-40 for customized |
Payment Term | L/C or T/T |
Package | By bundle or as customer's requirement |
Application | Engineering or project, plant and equipment, mechanical equipment, bridge, etc |
Surface | Black, coating, galavnized |
MOQ | 30Ton |

Qingdao Ruly Steel Engineering Co., Ltd is a professional steel structure fabrication and engineering company, located in Qingdao, China, which integrates steel structure design, research and development, manufacturing and installation. The project types include prefabricated steel workshop, warehouse, logistics park and other light steel structure of the civil building system, high-rise residential buildings, exhibition center, stadium, airport station and bridge, Power plant, chemical plant, oil and gas, mining,etc.
Our company's steel structure processing plant now covers an area of 35,000 square meters, plant20,000 square meters. More than 100 employees. The monthly production capacity for steel structure is more than 1500 Tons. Our steel structure components include light/heavy H steel ,BOX steel,Cross shaped section steel, large diameter submerged arc straight-weld pipe,steel model structure, C/Z purlin and machining fitting components . There are three subordinate steel structure companies, which have passed and strictly implemented ISO9001:2008 quality management system, ISO14001:2004 environmental system, GB/T28001:2001 occupational health system, and obtained ASTM certification in the United States, and international SGS product certification. Obtained the right of export, design, installation and consultation from the ministry of foreign trade and economic cooperation.
Quality first, Technology ahead ,Innovation continually is our entrepreneurial concept. We build strong relationships of trust with our clients, truly understanding their needs and bringing them the most reasonable solutions.
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QC/Technical Support
Raw material quality control
Thickness tolerance <0.25mm
Yield and tension strength testing in-house
Third party inspection certificate
Supply traceable mill certificate
Structural steel fabrication quality control
100% testing dimension tolerance <1mm
20% sample welding line ultrasonic testing, no fault, full penetration.
20% magnetic powder testing, no bubble, no defect, Smooth and Full
Supply third-party inspection assistance.
Shot blasting and painting quality control
Shot blasting grade Sa. 2.5 Metal luster, no rust, no oil dirt, no welding spatter, Roughness >75um
Paint primer within 5 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75UM
Pre-assembly testing the connection details.


2.Designing, fabrication and installation for Prefabricated steel structure building.
3.Deepen or design the fabrication drawing or shop drawing based on your architectural drawing and construction drawing
4.Engineering consulting service

1. You are manufacture factory or trading company?
2. Is your price competitive compared with other companies?
Our business objectives are to give the best price with same quality and best quality with the same price. We will do everything we can to reduce your cost and guarantee you get the best product that you paid for.
3. Can you send engineers or whole team to install my project?
We will give detailed installation drawings for free. We can send engineers as installation director or a team upon request.
4. Do you accept container loading inspection?
You are welcomed to send an inspector, not only for the container loading, but any time during the production time.
5. Do you offer designing service for us?
Yes, we could design full solution drawings as your requirements. By using AutoCAD, PKPM, MTS, 3D3S, Tarch, Tekla Structures (Xsteel) and etc. we can design complex industrial building like office mansion, super marker, auto dealer shop, shipping mall, 5 star hotel.
6. What is the delivery time?
Delivery time depends on order quantities. In general the delivery time to nearest seaport in China will be 40 days after receiving deposit.
7. How can you get a quotation for your projects?
You can contact us by email, phone, WhatsApp,Viber and so on 24*7 and you will get reply within 8 hours.
1. Professional design team, we could design the drawing as your requirement or calculate the steel quantity based on your drawing.
2. Skilled fabrication team and advanced equipment. We make the independent production schedule to each project.
3. One-stop service: We have completed lots such kinds of projects, we could provide the integrated proposal for your project.
4. Professional QC team will guarantee that we will provide the production and service as your request.
5. After sales service: If it has any questions that need us to do in your process of using, such as the maintain of outside insulation and steel components, just tell us , we will try to provide the service as well as we can.

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